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Get JSF managed bean by name in any Servlet related class
I'm trying to write a custom servlet (for AJAX/JSON) in which I would like to reference my @ManagedBeans by name. I'm hoping to map:
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Ways to implement data versioning in MongoDB
Can you share your thoughts how would you implement data versioning in MongoDB. (I've asked similar question regarding Cassandra . If you have any thoughts which db is better for that please share)
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Add Keypair to existing EC2 instance
I was given AWS Console access to an account with 2 instances running that I cannot shut down (in production). I would however like to gain SSH access to these instances, is it possible to create a new Keypair and apply it to the instances so I can SSH in? Obtaining the exisiting pem file for the ke...
Textarea to resize based on content length [duplicate]
I need a textarea where I type my text in the box, it grows in length as needed to avoid having to deal with scroll bars and it need to shrink after delete text!
I didn’t want to go down the mootools or jquery route because I have a lightweight form.
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Why does `a == b or c or d` always evaluate to True?
I am writing a security system that denies access to unauthorized users.
3 Answers
3
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Unknown column in 'field list' error on MySQL Update query
I keep getting MySQL error #1054, when trying to perform this update query:
11 Answers
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How to use git with gnome-keyring integration
Git 1.8.0 supports integration with gnome-keyring.
8 Answers
8
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Performant Entity Serialization: BSON vs MessagePack (vs JSON)
Recently I've found MessagePack , an alternative binary serialization format to Google's Protocol Buffers and JSON which also outperforms both.
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Generate sql insert script from excel worksheet
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I think importing using one of the methods mentioned is ideal if it truly is a large file, but you can use Excel to create insert statements:
="INSERT INTO table_name VALUES('"&A1&"','"&B1&"','"&C1&"')"
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Pandas convert dataframe to array of tuples
I have manipulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
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